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58519018 VM |
1 | /* |
2 | * This file is free software; you can redistribute it and/or modify | |
3 | * it under the terms of the GNU General Public License, version 2, | |
4 | * as published by the Free Software Foundation. | |
5 | * | |
6 | * In addition to the permissions in the GNU General Public License, | |
7 | * the authors give you unlimited permission to link the compiled | |
8 | * version of this file into combinations with other programs, | |
9 | * and to distribute those combinations without any restriction | |
10 | * coming from the use of this file. (The General Public License | |
11 | * restrictions do apply in other respects; for example, they cover | |
12 | * modification of the file, and distribution when not linked into | |
13 | * a combined executable.) | |
14 | * | |
15 | * This file is distributed in the hope that it will be useful, but | |
16 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
18 | * General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; see the file COPYING. If not, write to | |
22 | * the Free Software Foundation, 51 Franklin Street, Fifth Floor, | |
23 | * Boston, MA 02110-1301, USA. | |
24 | */ | |
25 | ||
26 | #include "common.h" | |
638c2ca4 | 27 | #include "signature.h" |
58519018 | 28 | #include "repository.h" |
44908fe7 | 29 | #include "git2/common.h" |
58519018 | 30 | |
638c2ca4 | 31 | void git_signature_free(git_signature *sig) |
58519018 | 32 | { |
638c2ca4 | 33 | if (sig == NULL) |
58519018 VM |
34 | return; |
35 | ||
638c2ca4 VM |
36 | free(sig->name); |
37 | free(sig->email); | |
38 | free(sig); | |
58519018 VM |
39 | } |
40 | ||
56d8ca26 | 41 | git_signature *git_signature_new(const char *name, const char *email, git_time_t time, int offset) |
58519018 | 42 | { |
638c2ca4 | 43 | git_signature *p = NULL; |
58519018 | 44 | |
638c2ca4 | 45 | if ((p = git__malloc(sizeof(git_signature))) == NULL) |
58519018 VM |
46 | goto cleanup; |
47 | ||
48 | p->name = git__strdup(name); | |
49 | p->email = git__strdup(email); | |
638c2ca4 VM |
50 | p->when.time = time; |
51 | p->when.offset = offset; | |
58519018 VM |
52 | |
53 | if (p->name == NULL || p->email == NULL) | |
54 | goto cleanup; | |
55 | ||
56 | return p; | |
57 | ||
58 | cleanup: | |
638c2ca4 | 59 | git_signature_free(p); |
58519018 VM |
60 | return NULL; |
61 | } | |
62 | ||
638c2ca4 | 63 | git_signature *git_signature_dup(const git_signature *sig) |
58519018 | 64 | { |
638c2ca4 | 65 | return git_signature_new(sig->name, sig->email, sig->when.time, sig->when.offset); |
58519018 VM |
66 | } |
67 | ||
58519018 | 68 | |
638c2ca4 | 69 | static int parse_timezone_offset(const char *buffer, int *offset_out) |
13710f1e | 70 | { |
71 | int offset, dec_offset; | |
72 | int mins, hours; | |
73 | ||
74 | const char* offset_start; | |
75 | char* offset_end; | |
76 | ||
77 | offset_start = buffer + 1; | |
78 | ||
638c2ca4 | 79 | if (*offset_start == '\n') { |
fee065a0 | 80 | *offset_out = 0; |
81 | return GIT_SUCCESS; | |
82 | } | |
83 | ||
13710f1e | 84 | if (offset_start[0] != '-' && offset_start[0] != '+') |
85 | return GIT_EOBJCORRUPTED; | |
86 | ||
87 | dec_offset = strtol(offset_start + 1, &offset_end, 10); | |
88 | ||
89 | if (offset_end - offset_start != 5) | |
90 | return GIT_EOBJCORRUPTED; | |
91 | ||
92 | hours = dec_offset / 100; | |
93 | mins = dec_offset % 100; | |
94 | ||
638c2ca4 | 95 | if (hours > 14) // see http://www.worldtimezone.com/faq.html |
13710f1e | 96 | return GIT_EOBJCORRUPTED; |
97 | ||
638c2ca4 | 98 | if (mins > 59) |
13710f1e | 99 | return GIT_EOBJCORRUPTED; |
100 | ||
101 | offset = (hours * 60) + mins; | |
102 | ||
103 | if (offset_start[0] == '-') | |
13710f1e | 104 | offset *= -1; |
13710f1e | 105 | |
106 | *offset_out = offset; | |
107 | ||
108 | return GIT_SUCCESS; | |
109 | } | |
110 | ||
111 | ||
720d5472 | 112 | int git_signature__parse(git_signature *sig, const char **buffer_out, |
58519018 VM |
113 | const char *buffer_end, const char *header) |
114 | { | |
115 | const size_t header_len = strlen(header); | |
116 | ||
117 | int name_length, email_length; | |
720d5472 VM |
118 | const char *buffer = *buffer_out; |
119 | const char *line_end, *name_end, *email_end; | |
13710f1e | 120 | int offset = 0; |
58519018 | 121 | |
638c2ca4 | 122 | memset(sig, 0x0, sizeof(git_signature)); |
58519018 VM |
123 | |
124 | line_end = memchr(buffer, '\n', buffer_end - buffer); | |
125 | if (!line_end) | |
126 | return GIT_EOBJCORRUPTED; | |
127 | ||
128 | if (buffer + (header_len + 1) > line_end) | |
129 | return GIT_EOBJCORRUPTED; | |
130 | ||
131 | if (memcmp(buffer, header, header_len) != 0) | |
132 | return GIT_EOBJCORRUPTED; | |
133 | ||
134 | buffer += header_len; | |
135 | ||
136 | /* Parse name */ | |
137 | if ((name_end = memchr(buffer, '<', buffer_end - buffer)) == NULL) | |
138 | return GIT_EOBJCORRUPTED; | |
139 | ||
140 | name_length = name_end - buffer - 1; | |
638c2ca4 VM |
141 | sig->name = git__malloc(name_length + 1); |
142 | memcpy(sig->name, buffer, name_length); | |
143 | sig->name[name_length] = 0; | |
58519018 VM |
144 | buffer = name_end + 1; |
145 | ||
146 | if (buffer >= line_end) | |
147 | return GIT_EOBJCORRUPTED; | |
148 | ||
149 | /* Parse email */ | |
150 | if ((email_end = memchr(buffer, '>', buffer_end - buffer)) == NULL) | |
151 | return GIT_EOBJCORRUPTED; | |
152 | ||
153 | email_length = email_end - buffer; | |
638c2ca4 VM |
154 | sig->email = git__malloc(email_length + 1); |
155 | memcpy(sig->email, buffer, email_length); | |
156 | sig->email[email_length] = 0; | |
58519018 VM |
157 | buffer = email_end + 1; |
158 | ||
159 | if (buffer >= line_end) | |
160 | return GIT_EOBJCORRUPTED; | |
161 | ||
720d5472 | 162 | sig->when.time = strtol(buffer, (char **)&buffer, 10); |
58519018 | 163 | |
638c2ca4 | 164 | if (sig->when.time == 0) |
58519018 VM |
165 | return GIT_EOBJCORRUPTED; |
166 | ||
638c2ca4 | 167 | if (parse_timezone_offset(buffer, &offset) < GIT_SUCCESS) |
13710f1e | 168 | return GIT_EOBJCORRUPTED; |
169 | ||
638c2ca4 | 170 | sig->when.offset = offset; |
13710f1e | 171 | |
58519018 | 172 | *buffer_out = (line_end + 1); |
6f02c3ba | 173 | return GIT_SUCCESS; |
58519018 VM |
174 | } |
175 | ||
72a3fe42 | 176 | int git_signature__write(char **signature, const char *header, const git_signature *sig) |
58519018 | 177 | { |
13710f1e | 178 | int offset, hours, mins; |
72a3fe42 VM |
179 | char sig_buffer[2048]; |
180 | int sig_buffer_len; | |
181 | char sign; | |
13710f1e | 182 | |
638c2ca4 VM |
183 | offset = sig->when.offset; |
184 | sign = (sig->when.offset < 0) ? '-' : '+'; | |
13710f1e | 185 | |
186 | if (offset < 0) | |
187 | offset = -offset; | |
188 | ||
189 | hours = offset / 60; | |
190 | mins = offset % 60; | |
191 | ||
72a3fe42 VM |
192 | sig_buffer_len = snprintf(sig_buffer, sizeof(sig_buffer), |
193 | "%s %s <%s> %u %c%02d%02d\n", | |
194 | header, sig->name, sig->email, | |
195 | (unsigned)sig->when.time, sign, hours, mins); | |
196 | ||
197 | if (sig_buffer_len < 0 || (size_t)sig_buffer_len > sizeof(sig_buffer)) | |
198 | return GIT_ENOMEM; | |
199 | ||
200 | *signature = git__strdup(sig_buffer); | |
201 | return sig_buffer_len; | |
58519018 VM |
202 | } |
203 | ||
204 |